History

It is unknown why the island is so named, however, at some point, The Hightower was build atop it. Even the Maesters of The Citadel do not have any records of a battle on this isle.

In the books

Battle Island is located within Oldtown. The island sits in the area where the Honeywine widens and empties into Whispering Sound. The Hightower sits atop it. It is unknown how the island came to be named; and some tales claim dragons once roosted on Battle Isle until the first Hightower put an end to them.